Wounded Rage
Level 4 Barbarian

Trigger: You take damage and are capable of entering a rage.

You roar in pain, awakening the rage within you. You Rage.

Deflect Arrow
Level 4 Monk

Trigger: You are the target of a physical ranged attack.

You gain a +4 circumstance bonus to AC against the triggering attack. If the attack misses, you have deflected it. You cannot use this feat to deflect unusually massive ranged projectiles (such as boulders or ballista bolts).

Stand Still
Level 4 Monk

Trigger: A creature within your reach uses a move action or leaves a square during a move action it’s using.

You strike out when your foe tries to flee. Make a melee Strike against the triggering creature. If the attack is a critical hit and the trigger was a move action, you disrupt that action.

Reactive Pursuit
Level 4 Rogue

Trigger: An adjacent foe moves away from you, and you can reach at least one space adjacent to the foe with a Stride action.

You keep pace with a retreating foe. You Stride, but you must end your movement adjacent to the triggering enemy. Your move does not trigger reactions from the triggering enemy. You can use Reactive Pursuit to Burrow, Climb, Fly, or Swim instead of Stride if you have the corresponding movement type.